METHODS AND APPARATUS FOR LONG-DISTANCE TRANSMISSION ACROSS MULTI-MODE FIBERS
    43.
    发明申请
    METHODS AND APPARATUS FOR LONG-DISTANCE TRANSMISSION ACROSS MULTI-MODE FIBERS 审中-公开
    用于多模式纤维的长距离传输的方法和装置

    公开(公告)号:WO2012151362A2

    公开(公告)日:2012-11-08

    申请号:PCT/US2012/036255

    申请日:2012-05-03

    CPC classification number: H04B10/2581 H04L1/0643

    Abstract: Various method and apparatus embodiments that implement multi-input, multi-output (MIMO) techniques in optical communications systems that utilize mutli-mode optical fiber are disclosed. The techniques may include dispersion compensation, adaptive modulation, and optimization of modal coupling diversity. Using these techniques may increase the performance (in terms distance and/or bandwidth) of optical communications systems based on multi-mode fibers.

    Abstract translation: 公开了在采用多模光纤的光通信系统中实现多输入多输出(MIMO)技术的各种方法和设备实施例。 这些技术可以包括色散补偿,自适应调制和模态耦合分集的优化。 使用这些技术可以增加基于多模光纤的光通信系统的性能(以距离和/或带宽计)。

    PRODUCTION AND USE OF RAT SPERMATOGONIAL STEM CELL LINES
    45.
    发明申请
    PRODUCTION AND USE OF RAT SPERMATOGONIAL STEM CELL LINES 审中-公开
    大肠杆菌干细胞系的生产和使用

    公开(公告)号:WO2010065550A2

    公开(公告)日:2010-06-10

    申请号:PCT/US2009/066275

    申请日:2009-12-01

    Inventor: HAMRA, F., Kent

    Abstract: A spermatogonial stem cell line that is derived from testes of rats characterized by a desirable genetic background can serve as a source for cells to transplant into male-sterile recipient animals that are immuno-compatible with the spermatogonial line. Rat cells thus transplanted readily develop into fertilization-competent, haploid male gametes, with little or no endogenous sperm competition generated by the testes of the male-sterile recipient. This approach, constituting the first vector system for the use of rat spermatogonial lines from in vitro culture in generating mutant rats on a desired genetic background, effects maximal germline transmission of donor haplotypes from the transplanted spermatogonial cells.

    Abstract translation: 来源于具有所需遗传背景的大鼠睾丸的精原干细胞系可以作为细胞移植到与精原细胞系免疫相容的雄性不育受体动物的来源。 因此移植的大鼠细胞很容易发育成受精能力的单倍体雄性配子,雄性不育接受者的睾丸产生的内源性精子竞争很少或没有。 构建用于在所需遗传背景下产生突变大鼠的来自体外培养的大鼠精原细胞系的第一载体系统影响来自移植的精原细胞的供体单倍型的最大种系传播。

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